The USAF is worried that the LAS is not powerful enough to get the Orion sufficiently far away from the stack to avoid serious damage from shrapnel moving away from the explosion at super-sonic speeds.

Goat says: geniuses #106: Regardless of what kind of fight you have on the ground you will need close air support, strategic air assets, airborne intelligence assets, and airborne command and control assets, so like it or not, the USAF is not going anywhere anytime soon.